Javascript and CSS not updating when running application after source code changes in Visual Stud...

I'm writing an ASP.NET 4.6 MVC 5 application. JavaScript and CSS repeatedly fails to update when I run the application after making changes to the source code. I've resorted to deleting object code, project .dlls, and, closing and reopening Visual Studio
2015. Usually the only way to fix it is by closing down Windows and restarting.